Ice sheets & sea levels

Earth Observationtechniques have revolutionised studies of ice sheet mass balance: recent studies suggest that the Antarctic and Greenland ice sheets are contributing anything between +1.9 and -0.2 mm to sea levels each year. This video uses 20 years of satellite data to demonstrate how much – and how fast – the ice sheets covering Greenland and Antarctica are melting, and their contribution to sea-level rise.